# NEO-F9P
## Data sheet
https://content.u-blox.com/sites/default/files/documents/NEO-F9P-15B_DataSheet_UBX-22021920.pdf?utm_content=UBX-22021920
## Integration Manual
https://content.u-blox.com/sites/default/files/documents/NEO-F9P_IntegrationManual_UBX-22028362.pdf
## Interface spec
https://content.u-blox.com/sites/default/files/documents/u-blox-F9-HPG-L1L5-1.40_InterfaceDescription_UBX-23006991.pdf?utm_content=UBX-23006991

# ZED-20P
## Data sheet
https://content.u-blox.com/sites/default/files/documents/ZED-X20P-00B_DataSheet_UBXDOC-963802114-12690.pdf
## Integration Manual
https://content.u-blox.com/sites/default/files/documents/ZED-X20P_IntegrationManual_UBXDOC-963802114-12901.pdf?utm_content=UBXDOC-963802114-12901
## Interface spec
https://content.u-blox.com/sites/default/files/documents/u-blox-20-HPG-2.00_InterfaceDescription_UBXDOC-304424225-19888.pdf?utm_content=UBXDOC-304424225-19888

# Real time Kinematics
## ESA Article 
https://gssc.esa.int/navipedia/index.php?title=Real_Time_Kinematics

# RTCM 3.0
## Overview
https://www.geopp.de/pdf/gppigs06_rtcm_f.pdf
## Cheat sheet
https://www.use-snip.com/kb/knowledge-base/an-rtcm-message-cheat-sheet/